feat(compiler): convert text mixed with elements into createVNode calls

This ensures they are tracked as dynamic children when inside blocks.
Also guaruntees compiled vnodes always have vnode children in arrays
so that they can skip normalizeVNode safely in optimized mode.

packages/compiler-core/src/utils.ts

@@ -293,9 +293,16 @@ export function hasScopeRef(
     case NodeTypes.COMPOUND_EXPRESSION:
       return node.children.some(c => isObject(c) && hasScopeRef(c, ids))
     case NodeTypes.INTERPOLATION:
+    case NodeTypes.TEXT_CALL:
       return hasScopeRef(node.content, ids)
+    case NodeTypes.TEXT:
+    case NodeTypes.COMMENT:
+      return false
     default:
-      // TextNode or CommentNode
+      if (__DEV__) {
+        const exhaustiveCheck: never = node
+        exhaustiveCheck
+      }
       return false
   }
 }